Merge eval/help + readiness eval fix into PR #8

/fix infer FKs for FK-less dedorch catalog + log repr(e) in db executor

[NOTICKET] feat(eval): add help-skill eval harness + goal-based language fallback

/fix surface catalog foreign keys to the planner (FK-backed joins)

/fix default SKIP_INIT_DB=true for dedorch cutover (skip init_db on Go-owned schema)

[NOTICKET] fix(help): lock reply language to user's language on button path

/fix data_catalog model + CatalogStore to dedorch schema (data → catalog_payload)

/fix v2 chat stream api update to analyses_messages (#7)

/fix message_id for chat/stream Endpoint (#6)

feat/ Endpoint Restructure (#5)

feat/Analysis State & Report Rework (#4)

feat/Knowledge & Data Tools (#3)

/fix redis connection code for general redis connection

feat/Planner Agent (#2)

[KM-582][DED][AI] Fix Retrieval in Agentic Service

fix build error in importing packages langchain_postgres

Fix schema table langchain_pg_embedding

[NOTICKET] fix: add SKIP_INIT_DB flag and remove pymongo dependency

feat/Catalog Retrieval System (#1)

[KM-438][KM-439] Improve Retrieval and Querying feature (#15)

Make a query for tabular (XLSX and CSV) (#14)

Merge dev_new to main (improve retriever and add querying) (#13)

[NOTICKET] fixed single source into multiple sources (#12)

[NOTICKET] add updated_at metadata & prevent duplicate while adding new embedding (#10)

[NOTICKET] add total token logging (#9)

[KM-496] [DED][AI] Fix Response data structure for field sources (db flow)

[NOTICKET] [document]: add doctypes endpoint (#7)

[NOTICKET][DB] add endpoints for dbtypes (#6)

[KM-493] [DED][AI] Fix source extraction in chat

[KM-436][KM-437] add and modify for database and document pipeline (#3)

[NOTICKET] Init db_client endpoint

[KM-467] [DED][AI] Orchestration Agent - Init